Commodities
PrimaryBeryllium, Feldspar
SecondaryMica
Commodity typeB
Deposit
Deposit sizeS
WorkingsSurface
Orebody formDIKE
Materials
Ore mineralsBeryl, Feldspar, Mica
GangueQuartz, Spodumene
Geology
Host rockPegmatite
Associated rockPegmatite
Tectonic settingSouthern Black Hills
AlterationIron Stain, Some Altered Spodumene
Economic & production
Development statusPast Producer
Discovery year1939
Identification
Deposit ID10101684
MRDS IDD007200
RegionNA
Data scoreB
Coordinates43.87829, -103.40195
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18